#define ll_blkdev_put(a, b) blkdev_put(a)
#endif
-static inline struct file *ll_dentry_open(struct dentry *dentry,
- struct vfsmount *mnt, int flags,
- const struct cred *cred)
-{
#ifdef HAVE_DENTRY_OPEN_USE_PATH
- struct path path = { .mnt = mnt, .dentry = dentry };
- return dentry_open(&path, flags, cred);
-#elif defined HAVE_DENTRY_OPEN_4ARGS
- return dentry_open(dentry, mnt, flags, cred);
+#define ll_dentry_open(a,b,c) dentry_open(a,b,c)
#else
- return dentry_open(dentry, mnt, flags);
-#endif
+/*
+ * dentry_open handles its own reference counting since Linux v3.6
+ * (commit 765927b2). Callers should free their own references.
+ *
+ * Prior versions expected the caller to increment the references.
+ * The references are retained on success and freed on error.
+ */
+static inline struct file *ll_dentry_open(struct path *path, int flags,
+ const struct cred *cred)
+{
+ mntget(path->mnt);
+ dget(path->dentry);
+# ifdef HAVE_DENTRY_OPEN_4ARGS
+ return dentry_open(path->dentry, path->mnt, flags, cred);
+# else
+ return dentry_open(path->dentry, path->mnt, flags);
+# endif
}
+#endif
#ifdef HAVE_SECURITY_PLUG
#define ll_vfs_symlink(dir, dentry, mnt, path, mode) \